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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...gi-bin \?
cache deny QUERY
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
coredump_dir /var/spool/squid
3.测试机配置...
Positioning a div near bottom side of another div
...;
<div style='background-color: yellow; width: 70%;
height: 100px; position: relative;'>
Outer
<div style='background-color: green;
position: absolute; left: 0; width: 100%; bottom: 0;'>
<div style='background-color: magenta; width: 100px;
...
SCOPE_IDENTITY() for GUIDs?
...
CREATE TABLE TestTable(KEY uniqueidentifier, ID VARCHAR(100), Name VARCHAR(100), Value tinyint);
Declare @id uniqueidentifier ;
DECLARE @TmpTable TABLE (KEY uniqueidentifier);
INSERT INTO [dbo].[TestTable]
([ID], [Name], Value])
OUTPUT INSERTED.KEY INTO @...
navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't
...ator.geolocation.getCurrentPosition(successCallback,errorCallback,{timeout:10000});
Secondly, I have experienced quite different reliability in different contexts. Here at home, I get a callback within a second or two, although the accuracy is poor.
At work however, I experience quite bizarre var...
Convert two lists into a dictionary
...ur top examples:
import numpy
import timeit
l1 = list(numpy.random.random(100))
l2 = list(numpy.random.random(100))
And we see here that dict(zip(... does indeed run faster for larger datasets by about 20%.
>>> min(timeit.repeat(lambda: {k: v for k, v in zip(l1, l2)}))
9.698965263989521...
How much faster is Redis than mongoDB?
...ict with key/values to retrieve
data = {'key' + str(i): 'val' + str(i)*100 for i in range(num)}
# run tests
for test in tests:
start = time.time()
test(data)
elapsed = time.time() - start
print "Completed %s: %d ops in %.2f seconds : %.1f ops/sec" % (test....
Read file line by line using ifstream in C++
...SBKerrek SB
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...
Show DialogFragment with animation growing from a point
...
+100
Being DialogFragment a wrapper for the Dialog class, you should set a theme to your base Dialog to get the animation you want:
publ...
List comprehension vs map
...ctly the same function:
$ python -mtimeit -s'xs=range(10)' 'map(hex, xs)'
100000 loops, best of 3: 4.86 usec per loop
$ python -mtimeit -s'xs=range(10)' '[hex(x) for x in xs]'
100000 loops, best of 3: 5.58 usec per loop
An example of how performance comparison gets completely reversed when map ne...
Practical non-image based CAPTCHA approaches?
...a.value) + 1;
}
}
setTimeout("antiSpam()", 1000);
}
antiSpam();
Then when the form is submitted, If the antispam value is still "lalalala", then I mark it as spam. If the antispam value is an integer, I check to see if it is above something like 10 (seconds). If it...